if ( jQuery.browser.msie && element.setInterval != undefined )
element = window;
+ // Make sure that the function being executed has a unique ID
+ if ( !handler.guid )
+ handler.guid = this.guid++;
+
// if data is passed, bind to handler
if( data != undefined ) {
// Create temporary function pointer to original handler
handler.guid = fn.guid;
}
- // Make sure that the function being executed has a unique ID
- if ( !handler.guid ) {
- handler.guid = this.guid++;
- // Don't forget to set guid for the original handler function
- if (fn) fn.guid = handler.guid;
- }
-
// Init the element's event structure
if (!element.$events)
element.$events = {};
if (!element.$handle)
element.$handle = function() {
- jQuery.event.handle.apply(element, arguments);
+ // returned undefined or false
+ var val;
+
+ // Handle the second event of a trigger and when
+ // an event is called after a page has unloaded
+ if ( typeof jQuery == "undefined" || jQuery.event.triggered )
+ return val;
+
+ val = jQuery.event.handle.apply(element, arguments);
+
+ return val;
};
// Get the current list of functions bound to this event
// And bind the global event handler to the element
if (element.addEventListener)
element.addEventListener(type, element.$handle, false);
- else if (element.attachEvent)
+ else
element.attachEvent("on" + type, element.$handle);
}
// Remember the function in a global list (for triggering)
if (!this.global[type])
this.global[type] = [];
- this.global[type].push( element );
+ // Only add the element to the global list once
+ if (jQuery.inArray(element, this.global[type]) == -1)
+ this.global[type].push( element );
},
guid: 1,
// Detach an event or set of events from an element
remove: function(element, type, handler) {
- var events = element.$events, ret;
+ var events = element.$events, ret, index;
if ( events ) {
// type is actually an event object here
if ( !ret ) {
if (element.removeEventListener)
element.removeEventListener(type, element.$handle, false);
- else if (element.detachEvent)
+ else
element.detachEvent("on" + type, element.$handle);
ret = null;
delete events[type];
+
+ // Remove element from the global event type cache
+ while ( this.global[type] && ( (index = jQuery.inArray(element, this.global[type])) >= 0 ) )
+ delete this.global[type][index];
}
}
data.unshift( this.fix({ type: type, target: element }) );
// Trigger the event
- if ( (val = this.handle.apply( element, data )) !== false )
+ if ( jQuery.isFunction(element.$handle) && (val = element.$handle.apply( element, data )) !== false )
this.triggered = true;
if ( fn && val !== false && !jQuery.nodeName(element, 'a') )
handle: function(event) {
// returned undefined or false
var val;
-
- // Handle the second event of a trigger and when
- // an event is called after a page has unloaded
- if ( typeof jQuery == "undefined" || jQuery.event.triggered )
- return val;
// Empty object is for triggered events with no data
event = jQuery.event.fix( event || window.event || {} );
},
fix: function(event) {
+ // store a copy of the original event object
+ // and clone to set read-only properties
+ var originalEvent = event;
+ event = jQuery.extend({}, originalEvent);
+
+ // add preventDefault and stopPropagation since
+ // they will not work on the clone
+ event.preventDefault = function() {
+ // if preventDefault exists run it on the original event
+ if (originalEvent.preventDefault)
+ return originalEvent.preventDefault();
+ // otherwise set the returnValue property of the original event to false (IE)
+ originalEvent.returnValue = false;
+ };
+ event.stopPropagation = function() {
+ // if stopPropagation exists run it on the original event
+ if (originalEvent.stopPropagation)
+ return originalEvent.stopPropagation();
+ // otherwise set the cancelBubble property of the original event to true (IE)
+ originalEvent.cancelBubble = true;
+ };
+
// Fix target property, if necessary
if ( !event.target && event.srcElement )
event.target = event.srcElement;
+
+ // check if target is a textnode (safari)
+ if (jQuery.browser.safari && event.target.nodeType == 3)
+ event.target = originalEvent.target.parentNode;
// Add relatedTarget, if necessary
if ( !event.relatedTarget && event.fromElement )
event.relatedTarget = event.fromElement == event.target ? event.toElement : event.fromElement;
+ // Calculate pageX/Y if missing and clientX/Y available
+ if ( event.pageX == null && event.clientX != null ) {
+ var e = document.documentElement, b = document.body;
+ event.pageX = event.clientX + (e && e.scrollLeft || b.scrollLeft);
+ event.pageY = event.clientY + (e && e.scrollTop || b.scrollTop);
+ }
+
+ // Add which for key events
+ if ( !event.which && (event.charCode || event.keyCode) )
+ event.which = event.charCode || event.keyCode;
+
// Add metaKey to non-Mac browsers (use ctrl for PC's and Meta for Macs)
- if ( event.metaKey == null && event.ctrlKey != null )
+ if ( !event.metaKey && event.ctrlKey )
event.metaKey = event.ctrlKey;
// Add which for click: 1 == left; 2 == middle; 3 == right
// Note: button is not normalized, so don't use it
- if ( event.which == null && event.button != null )
+ if ( !event.which && event.button )
event.which = (event.button & 1 ? 1 : ( event.button & 2 ? 3 : ( event.button & 4 ? 2 : 0 ) ));
-
- // Calculate pageX/Y if missing and clientX/Y available
- if ( event.pageX == null && event.clientX != null ) {
- var e = document.documentElement || document.body;
- event.pageX = event.clientX + e.scrollLeft;
- event.pageY = event.clientY + e.scrollTop;
- }
-
- // Add which for keypresses: keyCode
- if ( (event.which == null || event.type == "keypress") && event.keyCode != null )
- event.which = event.keyCode;
-
- // If it's a keypress event, add charCode to IE
- if ( event.charCode == null && event.type == "keypress" )
- event.charCode = event.keyCode;
-
- // check if target is a textnode (safari)
- if (jQuery.browser.safari && event.target.nodeType == 3) {
- // store a copy of the original event object
- // and clone because target is read only
- var originalEvent = event;
- event = jQuery.extend({}, originalEvent);
-
- // get parentnode from textnode
- event.target = originalEvent.target.parentNode;
-
- // add preventDefault and stopPropagation since
- // they will not work on the clone
- event.preventDefault = function() {
- return originalEvent.preventDefault();
- };
- event.stopPropagation = function() {
- return originalEvent.stopPropagation();
- };
- }
-
- // fix preventDefault and stopPropagation
- if (!event.preventDefault)
- event.preventDefault = function() {
- this.returnValue = false;
- };
-
- if (!event.stopPropagation)
- event.stopPropagation = function() {
- this.cancelBubble = true;
- };
return event;
}
* data as the second parameter (and the handler function as the third), see
* second example.
*
+ * Calling bind with an event type of "unload" will automatically
+ * use the one method instead of bind to prevent memory leaks.
+ *
* @example $("p").bind("click", function(){
* alert( $(this).text() );
* });
* @cat Events
*/
bind: function( type, data, fn ) {
- return this.each(function(){
+ return type == "unload" ? this.one(type, data, fn) : this.each(function(){
jQuery.event.add( this, type, fn || data, fn && data );
});
},
f.apply( document, [jQuery] );
// Otherwise, remember the function for later
- else {
+ else
// Add the function to the wait list
jQuery.readyList.push( function() { return f.apply(this, [jQuery]) } );
- }
return this;
}
document.removeEventListener( "DOMContentLoaded", jQuery.ready, false );
// Remove script element used by IE hack
- jQuery(window).load(function(){ jQuery("#__ie_init").remove(); });
+ if( !window.frames.length ) // don't remove if frames are present (#1187)
+ jQuery(window).load(function(){ jQuery("#__ie_init").remove(); });
}
}
});
var els = global[type], i = els.length;
if ( i && type != 'unload' )
do
- jQuery.event.remove(els[i-1], type);
+ els[i-1] && jQuery.event.remove(els[i-1], type);
while (--i);
}
});
git.asbjorn.biz / jquery.git / blobdiff